1lgy

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==Overview==
==Overview==
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The crystal and molecular structure of Lipase II from Rhizopus niveus was, analyzed using X-ray single crystal diffraction data at a resolution of, 2.2 A. The structure was refined to an R-factor of 0.19 for all available, data. This lipase was purified and crystallized as Lipase I, which, contains two polypeptide chains combined through non-covalent interaction., However, during crystal growth, Lipase I was converted to Lipase II, which, consists of a single polypeptide chain of 269 amino acid residues, by, limited proteolysis. The structure of Lipase II shows a typical alpha/beta, hydrolase fold containing the so-called nucleophilic elbow. The catalytic, center of this enzyme is analogous to those of other neutral lipases and, serine proteases. This catalytic center is sheltered by an alpha-helix, lid, which appears in neutral lipases, opening the active site at the, oil-water interface.
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The crystal and molecular structure of Lipase II from Rhizopus niveus was analyzed using X-ray single crystal diffraction data at a resolution of 2.2 A. The structure was refined to an R-factor of 0.19 for all available data. This lipase was purified and crystallized as Lipase I, which contains two polypeptide chains combined through non-covalent interaction. However, during crystal growth, Lipase I was converted to Lipase II, which consists of a single polypeptide chain of 269 amino acid residues, by limited proteolysis. The structure of Lipase II shows a typical alpha/beta hydrolase fold containing the so-called nucleophilic elbow. The catalytic center of this enzyme is analogous to those of other neutral lipases and serine proteases. This catalytic center is sheltered by an alpha-helix lid, which appears in neutral lipases, opening the active site at the oil-water interface.
==About this Structure==
==About this Structure==
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==Reference==
==Reference==
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The crystal structure of lipase II from Rhizopus niveus at 2.2 A resolution., Kohno M, Funatsu J, Mikami B, Kugimiya W, Matsuo T, Morita Y, J Biochem (Tokyo). 1996 Sep;120(3):505-10. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=8902613 8902613]
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The crystal structure of lipase II from Rhizopus niveus at 2.2 A resolution., Kohno M, Funatsu J, Mikami B, Kugimiya W, Matsuo T, Morita Y, J Biochem. 1996 Sep;120(3):505-10. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=8902613 8902613]
[[Category: Rhizopus niveus]]
[[Category: Rhizopus niveus]]
[[Category: Single protein]]
[[Category: Single protein]]
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[[Category: lipase]]
[[Category: lipase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 13:44:53 2008''

Revision as of 11:44, 21 February 2008


1lgy, resolution 2.2Å

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LIPASE II FROM RHIZOPUS NIVEUS

Overview

The crystal and molecular structure of Lipase II from Rhizopus niveus was analyzed using X-ray single crystal diffraction data at a resolution of 2.2 A. The structure was refined to an R-factor of 0.19 for all available data. This lipase was purified and crystallized as Lipase I, which contains two polypeptide chains combined through non-covalent interaction. However, during crystal growth, Lipase I was converted to Lipase II, which consists of a single polypeptide chain of 269 amino acid residues, by limited proteolysis. The structure of Lipase II shows a typical alpha/beta hydrolase fold containing the so-called nucleophilic elbow. The catalytic center of this enzyme is analogous to those of other neutral lipases and serine proteases. This catalytic center is sheltered by an alpha-helix lid, which appears in neutral lipases, opening the active site at the oil-water interface.

About this Structure

1LGY is a Single protein structure of sequence from Rhizopus niveus. Active as Triacylglycerol lipase, with EC number 3.1.1.3 Known structural/functional Site: . Full crystallographic information is available from OCA.

Reference

The crystal structure of lipase II from Rhizopus niveus at 2.2 A resolution., Kohno M, Funatsu J, Mikami B, Kugimiya W, Matsuo T, Morita Y, J Biochem. 1996 Sep;120(3):505-10. PMID:8902613

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